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Topic: Esplora's OK With Neopixels (Read 4336 times) previous topic - next topic

runaway_pancake

Jul 23, 2016, 04:01 pm Last Edit: Jul 23, 2016, 05:35 pm by Runaway Pancake
The Adafruit Neopixel library is Esplora compatible, having confirmed this last night.
I used a 4x4 matrix and ran it all with an external 5V supply.
(The Neopixel 'commands' have to be used for this - and not the Esplora.write LED stuff - just to make that clear.)

An external supply isn't absolutely necessary. If you have a few neopixels or similar, it's OK to use V_usb, but if you get a 4x4 or something and try and make them all 'white' then that much may over-burden "Mr. USB"

> > > Adding wiring diagram.  NB - All matrixes may not have the same pin-out as mine. The resistor is NOT optional.  I used a 0.1uF decoupling cap (not shown) at the matrix power pins; good practice but maybe not essential.


"Who is like unto the beast? who is able to make war with him?"
When all else fails, check your wiring!

runaway_pancake

OK for WS2801, too.
If you have a strip or a string then an external supply is required.

WS2801 require two pins, so you need both "tinkerkit" pins.
I used a 7 pin header (0.1inch), spanning both of those connectors, pretty easy to disconnect for reprogramming
(...or use those jumper wires you all like so much).
"Who is like unto the beast? who is able to make war with him?"
When all else fails, check your wiring!

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